Alhambra Creek to Briones Peak is a 7.8 mile loop trail located near Martinez, California and is rated as moderate. The trail is primarily used for birding, hiking, nature trips & trail running and is accessible from September until June.

Stretching across more than 6800 miles and 15 states, the ADT is the only coast-to-coast, non-motorized recreational trail. Linking communities, cities, parks, and wilderness, the ADT allows people to hike, bike or ride horses for an afternoon or a cross-country adventure.

The American River has a paved trail from it's confluence with the Sacramento River and Beale's Point at Folsom Lake. There are numerous dirt hiking trails and several access points with picnic areas and parking.

American River Bike Trail Ramble is a 64 mile out and back trail located near Sacramento, California and is good for all skill levels. The trail is primarily used for road biking & trail running and is accessible year-round.

American River Parkway - Guy West Bridge to Goethe Park is a 12 mile out and back trail located near Sacramento, California that features a river and is good for all skill levels. The trail offers a number of activity options and is accessible year-round.

The Arch Rock Trail is 9 mile out and back near Point Reyes Station. The Arch Rock Trail is the Bear Creek trail and Coastal trail combined. The trail is well marked and easily navigated. The trail is heavily used and has many alternative routes. It can be damp and muddy in the winter.

Mission Bay Park is a 3.2 mile loop trail located near San Francisco, California that features a river. The trail is primarily used for hiking, road biking & trail running and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

This trail is just a portion of the larger Bay Trail system (http://www.baytrail.org/) and is a popular spot for walkers and runners. Since it is part of a larger trail system, it is possible to continue past the parking lot instead of turning around and returning to the trailhead / entry point.

One of the southernmost parks in the East Bay Regional Parks District, this well-maintained park's main attraction is the paved 3.5 mile loop that follows the bay on one side and salt water marshes on the other.

Bear Valley Trail to Wildcat Camp and Alamere Falls is a 7 mile point-to-point trail located near Point Reyes Station, California that features a lake and is good for all skill levels. The trail offers a number of activity options and is accessible year-round. Horses are also able to use this trail.

Heading south from Bear Valley to Alamere Falls is a more secluded options since most of the crowds go north from Palomarin. Wildcat Camp is a sweet spot for camping if you can get a spot outside of the stormy season.

Benicia State Recreation Area Marsh Loop Trail is a 1.2 mile loop trail located near Benicia, California that offers scenic views and is good for all skill levels. The trail is primarily used for hiking, road biking, trail running & walking and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

Black Diamond Mines Loop is a 6.6 mile loop trail located near Antioch, California that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

Cascade Fire Road - Cascade Falls Trail is a 1.7 mile out and back trail located near Fairfax, California that features a waterfall. The trail is good for all skill levels and primarily used for birding & hiking. Dogs are also able to use this trail but must be kept on leash.

Cataract Falls Trail is a 2.9 mile out and back trail located near Fairfax, California that features a waterfall and is rated as moderate. The trail is primarily used for birding, hiking, trail running & walking and is accessible from December until May. Dogs are also able to use this trail.

Cave Rocks Loop is a 5.1 mile loop trail located near Sunol, California that features beautiful wild flowers and is rated as moderate. The trail is primarily used for rock climbing & trail running and is accessible year-round. Dogs and horses are also able to use this trail.

China Camp State Park Campgrounds is a loop trail located near San Rafael, California that offers the chance to see wildlife and is rated as moderate. The trail offers a number of activity options and is accessible year-round. Horses are also able to use this trail.

Coast Trail to Wildcat Camp is a 11 mile out and back trail located near Bolinas, California that features a lake and is rated as moderate. The trail offers a number of activity options and is accessible year-round. Horses are also able to use this trail.

Coyote Pond Trail is a point-to-point trail located near Walnut Creek, California that offers the chance to see wildlife and is good for all skill levels. The trail is primarily used for mountain biking, trail running & walking and is accessible from March until October.

Crane Creek Regional Park is a 2 mile loop trail located near Santa Rosa, California that offers scenic views and is rated as moderate. The trail is primarily used for hiking & trail running and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

Paved trail with magnificent views of the SF Bay and Golden Gate Bridge while walking west and city scape views on the return. This is one of the most beautiful walks in SF. For historical information see http://www.bahiker.com/sfhikes/crissy.html

Cross Marin Trail is a 3.5 mile point-to-point trail located near Point Reyes Station, California. The trail is good for all skill levels and primarily used for hiking, road biking, trail running & walking. Dogs are also able to use this trail but must be kept on leash.

Diablo Foothills Regional Park Trails is a 6.1 mile loop trail located near Walnut Creek, California and is rated as difficult. The trail offers a number of activity options and is accessible year-round.

Scenic tidal pools make this the perfect trail for a ride, run, hike, or birding outing. The flat dirt path winds south along the bay and connects with Fremont blvd to complete a loop, or you can turn around and take the trail back. Because of the abundant wildlife, pets are not allowed.

East - West Ridge Loop is a 9.7 mile loop trail located near Oakland, California and is rated as moderate. The trail is primarily used for birding, hiking, mountain biking & trail running and is accessible year-round.

El Corte de Madera Mountain Bike is a 10 mile loop trail located near Redwood City, California that features a river and is rated as difficult. The trail is primarily used for hiking, mountain biking, trail running & walking and is accessible year-round. Horses are also able to use this trail.

Fire Lane Trail, Point Reyes is a 3 mile loop trail located near Inverness, California that features a river and is good for all skill levels. The trail is primarily used for birding, hiking & trail running and is accessible year-round.

French Trail Loop is a 7.9 mile loop trail located near Oakland, California that features beautiful wild flowers and is rated as difficult. The trail is primarily used for hiking & trail running and is accessible year-round.

Grizzly Flat Loop is a 10.2 mile loop trail located near Cupertino, California and is only recommended for very experienced outdoorsmen. The trail is primarily used for trail running and is accessible year-round.

Hacienda Trail is a 7.3 mile loop trail located near San Jose, California that features a river. The trail is rated as moderate and primarily used for hiking, mountain biking & trail running. Horses are also able to use this trail.

It's. Great way to start getting into shape if you are a new cyclist. It's flat which is great because it's a constant peddling. I would not suggest going on a really cold or windy day as it gets very cold and windy. But on a day of 50 and up it's great!!!

Helen Putnam Regional Park is a 2.2 mile loop trail located near Petaluma, California that features a great forest setting and is good for all skill levels. The trail is primarily used for hiking, mountain biking & trail running and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

Helen Putnam: south loop is a 2 mile loop trail located near Petaluma, California that offers scenic views and is rated as moderate. The trail is primarily used for hiking, mountain biking & trail running and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

Huckleberry Path Nature Trail is a 1.8 mile loop trail located near Canyon, California and is good for all skill levels. The trail is primarily used for birding, hiking, trail running & walking and is accessible year-round.

Indian Joe Trail (Little Yosemite) is a 3 mile loop trail located near Sunol, California that features a river and is rated as moderate. The trail is primarily used for birding, hiking, nature trips & trail running and is accessible year-round.

Mountain Trail, Jack London State Park is a 8 mile out and back trail located near Glen Ellen, California that features beautiful wild flowers and is rated as difficult. The trail is primarily used for hiking & mountain biking and is accessible year-round. Horses are also able to use this trail.

Jedediah Smith Trail, also known as the American River Bike Trail. Is a paved trail that runs along the American River. This trail is easy, with nice views of the river. Named after Jedediah Smith, the fur trader from the 1860's.

Joaquin Miller Park is a multiple route trail located near Oakland, California that offers the chance to see wildlife and is good for all skill levels. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

Kirby Cove is a moderately steep 1.8 mile out and back trail located in the Marin Headlands section of Golden Gate National Recreation Area offering campsites, a nice beach, and great views of the Golden Gate Bridge.

Lake Chabot Trail is a 8.6 mile loop trail located near Castro Valley, California that features a great forest setting and is rated as moderate. The trail is primarily used for fishing, hiking, mountain biking & walking and is accessible year-round.

Lake Natoma Trail is a 11 mile trail located near Orangevale, California. The trail is good for all skill levels offers a number of activity options. Dogs are also able to use this trail but must be kept on leash.

Lands End Trail is a 3 mile loop trail located near San Francisco, California that features a cave and is rated as moderate. The trail is primarily used for birding, hiking, trail running & walking and is accessible year-round. Dogs are also able to use this trail.

Las Trampas Regional Wilderness offers 5,342 acres of wilderness and an expanded trail system that allows hikers and horseback riders to enjoy its remote and rugged areas. The park's size and terrain allow visitors a feeling of privacy and escape from urban hustle and bustle. Carry plenty of drinkin

Lynch Canyon Open Space is a 9.8 mile loop trail located near Vallejo, California that features a river and is rated as moderate. The trail offers a number of activity options and is accessible from March until October. Horses are also able to use this trail.

Marsh Creek Trail is a 2.5 mile out and back trail located near Brentwood, California that features beautiful wild flowers and is good for all skill levels. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail.

Meadows Canyon and Big Springs Loop is a 7.2 mile loop trail located near Orinda, California and is good for all skill levels. The trail is primarily used for trail running and is accessible year-round.

Miners Ravine Trail is a 6 mile out and back trail located near Roseville, California and is good for all skill levels. The trail is primarily used for road biking & trail running and is accessible year-round.

Montara Mountain Trail is a 7.5 mile out and back trail located near Pacifica, California and is only recommended for very experienced outdoorsmen. The trail is primarily used for hiking, mountain biking, trail running & walking and is accessible year-round.

Morgan Territory Regional Preserve: Bob Walker Ridge Trail is a 5.9 mile loop trail located near Clayton, California and is rated as moderate. The trail is primarily used for mountain biking, trail running & walking and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

Napa Valley: Napa River Trail is a 2.5 mile out and back trail located near Napa, California that features a river. The trail is good for all skill levels and primarily used for hiking, road biking, trail running & walking. Dogs are also able to use this trail but must be kept on leash.

Northside Loop is a 11.7 mile loop trail located near Fairfax, California and is only recommended for very experienced outdoorsmen. The trail is primarily used for trail running and is accessible year-round.

Santa Teresa County Park located in the Santa Teresa Hills ten miles south of downtown San Jose. This diverse 1,627 acre park, rich in history, offers spectacular views from its trails above the Almaden and Santa Clara Valleys.

Old San Pedro Mountain Road / North Peak is a 12.4 mile out and back trail located near Pacifica, California and is rated as difficult. The trail is primarily used for hiking, mountain biking & trail running and is accessible year-round.

Pearson Arastradero Preserve has 10 miles of trails and is located in Palo Alto, California. The trails are used by hikers, cyclists and equestrians. Some trails are closed seasonally due to wet conditions.

Philosopher's Way is a 2.7 mile loop around the perimeter of McLaren Park and includes places to rest and view the landscape, as well as 14 'musing stations' with placards that explain the views. It's a pleasant walk, light hike, or breezy trail run through San Francisco's second largest park.

Pine Creek and Wall Point Trail is a 8.5 mile loop trail located near Alamo, California that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is accessible from April until September.

Quarry Lakes Regional Recreational Area is a loop trail located near Fremont, California that features a lake. The trail is good for all skill levels offers a number of activity options. Dogs are also able to use this trail but must be kept on leash.

There are plenty of beautiful trees for cool shade. There are steep obstacles along the way to keep you focused. The trail is well maintained and varies in width from time to time. It can be vast to narrow enough for only one person. Be cautious of the roots and large rocks that are on the trail.

River to Ridge, Napa is a 5 mile out and back trail located near Napa, California that features beautiful wild flowers and is good for all skill levels. The trail is primarily used for camping, hiking, mountain biking & trail running and is accessible year-round.

Round Valley Regional Preserve Trails is a 4.8 mile loop trail located near Brentwood, California that offers the chance to see wildlife and is rated as moderate. The trail is primarily used for hiking, mountain biking & trail running and is accessible year-round. Horses are also able to use this trail.

San Bruno Mountain is a 4.6 mile loop trail located near Brisbane, California that features beautiful wild flowers and is rated as moderate. The trail is primarily used for birding, hiking, trail running & walking and is accessible year-round.

San Tomas Aquino Creek Trail is a 2.8 mile point-to-point trail located near Santa Clara, California and is good for all skill levels. The trail is primarily used for road biking, trail running & walking and is accessible year-round. Dogs are also able to use this trail.

Sonoma County Regional Parks: Helen Putnam Trail is a 2.1 mile loop trail located near Petaluma, California that offers scenic views and is good for all skill levels. The trail is primarily used for hiking, mountain biking & trail running and is accessible year-round.

Springhill Trail is a 0.75 mile out and back trail located near Lafayette, California that offers scenic views. The trail is only recommended for very experienced outdoorsmen and primarily used for hiking.

Strawberry Canyon Fire Trail is a 7 mile out and back trail located near Berkeley, California that offers scenic views and is rated as moderate. The trail is primarily used for hiking, trail running & walking and is accessible year-round. Dogs are also able to use this trail.

Sunnyvale Baylands Park and Trails: A Levee Loop Trail Past Guadalupe Slough is a 4.5 mile loop trail located near Sunnyvale, California that offers the chance to see wildlife and is good for all skill levels. The trail offers a number of activity options and is accessible year-round.

Tafoni Sandstone Formation is a 6 mile loop trail located near Redwood City, California that features beautiful wild flowers and is rated as moderate. The trail is primarily used for hiking, mountain biking, trail running & walking and is accessible year-round. Horses are also able to use this trail.

Tamarancho Trail is a 10 mile loop trail located near Fairfax, California that offers scenic views and is rated as difficult. The trail is primarily used for hiking, mountain biking & trail running and is accessible year-round.

This loop takes you past the site of an old dairy farm, an early shingle mill and one of the largest remaining Coast Redwoods in the Santa Cruz Mountains. The trail traverses both the deep redwood forests and oak woodlands at higher elevations. Fire roads and single track make up this trail.

Tennessee Valley Trail is a 3.8 mile out and back trail located near Mill Valley, California. The trail is good for all skill levels and primarily used for hiking & mountain biking. Horses are also able to use this trail.